Patents by Inventor Chang-hyun Kim

Chang-hyun Kim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11060970
    Abstract: A gas concentration measurement device is disclosed. The gas concentration measurement device comprises: a light source unit for emitting light into the gas concentration measurement device; an incident unit for refracting the light emitted from the light source unit; a first reflection unit and a second reflection unit for reflecting the incident light; a rotatable third reflection unit; and a light receiving unit for measuring the amount of incident light, wherein the light incident from the incident unit is reflected between the first reflection unit and the second reflection unit through the third reflection unit, and the light is incident on the light receiving unit by allowing an optical path thereof to be changed according to the rotation of the third reflection unit.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: July 13, 2021
    Inventor: Chang Hyun Kim
  • Patent number: 11055239
    Abstract: A memory system is disclosed, which relates to technology for implementing data communication between memory devices. The memory system includes a plurality of memory devices and a memory controller. The memory devices allow a data packet composed of data and header information to be directly communicated between the memory devices. The memory controller transmits the data packet to a source memory device from among the plurality of memory devices, and receives the data packet from a last memory device from among the plurality of memory devices. Each of the memory devices hashes the header information such that the data is accessed, using a result of the hash, in address regions located at different positions.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: July 6, 2021
    Assignee: SK hynix Inc.
    Inventor: Chang Hyun Kim
  • Patent number: 11056103
    Abstract: A real-time utterance verification system according to the present invention includes a speech recognition unit configured to recognize an utterance of an utterer, a memory configured to store a program for verifying the utterance of the utterer in real time, and a processor configured to execute the program stored in the memory, wherein, upon executing the program, the processor generates and stores a list of the utterance of the utterer, performs a semantic analysis on each utterance included in the list, and generates, when the utterance is determined to be an inappropriate utterance for a listener as a result of the semantic analysis, utterance restricting information corresponding to the inappropriate utterance.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: July 6, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Chang Hyun Kim, Young Kil Kim
  • Publication number: 20210193217
    Abstract: A semiconductor device includes a buffer control circuit and an operation control circuit. The buffer control circuit generates an enable signal based on a self-refresh signal and to generate an end control signal and a supply control signal from a first internal chip selection signal during a self-refresh operation. The operation control circuit generates a frequency information signal from an internal command/address signal when an update signal is inputted during a mode register write operation, adjusts a shift amount based on the frequency information signal when the supply control signal is inputted during the mode register write operation, and generates an internal write command according to the adjusted shift amount during a read-modify-write operation in synchronization with an internal clock signal after generating an internal read command.
    Type: Application
    Filed: June 19, 2020
    Publication date: June 24, 2021
    Applicant: SK hynix Inc.
    Inventor: Chang Hyun KIM
  • Publication number: 20210184507
    Abstract: A wireless power transmitting device according to an embodiment may include a power transmission circuit and a processor. The processor may be configured to control the power transmission circuit to wirelessly transmit power to a first area around the wireless power transmitting device, perform a predetermined first operation when an obstacle is detected in a second area around the first area, and perform a predetermined second operation when it is detected that the obstacle has entered the first area.
    Type: Application
    Filed: February 26, 2021
    Publication date: June 17, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Seok PARK, Young-Ho RYU, Chang-hyun KIM, Myung-ho KIM, Woong-ll CHOI
  • Patent number: 11031064
    Abstract: A semiconductor device includes a buffer control circuit and an operation control circuit. The buffer control circuit generates an enable signal based on a self-refresh signal and to generate an end control signal and a supply control signal from a first internal chip selection signal during a self-refresh operation. The operation control circuit generates a frequency information signal from an internal command/address signal when an update signal is inputted during a mode register write operation, adjusts a shift amount based on the frequency information signal when the supply control signal is inputted during the mode register write operation, and generates an internal write command according to the adjusted shift amount during a read-modify-write operation in synchronization with an internal clock signal after generating an internal read command.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: June 8, 2021
    Assignee: SK hynix Inc.
    Inventor: Chang Hyun Kim
  • Publication number: 20210166959
    Abstract: An exemplary embodiment of the present invention provides a method of transferring a micro device, which is applicable to more various micro devices and is capable of improving transferring efficiency. An exemplary embodiment of the present invention provides a method of transferring a micro device.
    Type: Application
    Filed: April 16, 2019
    Publication date: June 3, 2021
    Inventors: Byung-Ik CHOI, Yun HWANGBO, Jae-Hyun KIM, Sung Uk YOON, Chang Hyun KIM, Jung Yup KIM, Kyung-Sik KIM, Sang Min KIM, Bongkyun JANG, Kwangseop KIM
  • Patent number: 10990522
    Abstract: An electronic device may include an information signal storage circuit and a write data selection circuit. The information signal storage circuit may be configured to store an information signal during a mode register set operation, and may be configured to output the stored information signal as a mode register information signal. The write data selection circuit may be configured to receive the mode register information and output the mode register information signal as write data.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: April 27, 2021
    Assignee: SK hynix Inc.
    Inventors: Chang Hyun Kim, Dong Kyun Kim
  • Publication number: 20210117131
    Abstract: A memory system is disclosed, which relates to technology for implementing data communication between memory devices. The memory system includes a plurality of memory devices and a memory controller. The memory devices allow a data packet composed of data and header information to be directly communicated between the memory devices. The memory controller transmits the data packet to a source memory device from among the plurality of memory devices, and receives the data packet from a last memory device from among the plurality of memory devices. Each of the memory devices hashes the header information such that the data is accessed, using a result of the hash, in address regions located at different positions.
    Type: Application
    Filed: December 24, 2020
    Publication date: April 22, 2021
    Inventors: Chang Hyun KIM, Eui Cheol LIM, Young Jung CHOI, Hyung Sik WON, Sun Woong KIM
  • Patent number: 10978728
    Abstract: The present invention relates to a method for producing a 3- to 3.5-valent vanadium solution from a 4-valent vanadium solution by a catalytic reaction in the presence of a reducing agent, which generates a gas product during oxidation; a method for producing an electrolyte for a vanadium redox flow battery; and an apparatus for producing a liquid electrolyte for a vanadium redox flow battery. The present invention is characterized in that when a 3- to 3.5-valent vanadium electrolyte is produced from a 4-valent vanadium electrolyte by a catalytic reaction in the presence of a reducing agent, which generates a gas product during oxidation, the gas product produced in the catalytic reaction is captured with inert gas bubbles, which are carrier gases, and is removed from the reaction solution of the catalytic reaction by gas-liquid phase separation, thereby accelerating the catalytic reaction towards the forward reaction.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: April 13, 2021
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Shin-kun Ryi, Myung-seok Jeon, Jae Yun Han, Chang-Hyun Kim
  • Patent number: 10964406
    Abstract: A semiconductor device includes a flag generation circuit and a write operation circuit. The flag generation circuit generates an error scrub flag if an error scrub operation is performed. The write operation circuit controls a write operation in response to the error scrub flag. The error scrub operation includes an internal read operation for outputting read data from a cell array, a data correction operation for correcting an error included in the read data to generate corrected data, and an internal write operation for storing the corrected data into the cell array.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: March 30, 2021
    Assignee: SK hynix Inc.
    Inventors: Young Ook Song, Yong Mi Kim, Chang Hyun Kim
  • Patent number: 10958243
    Abstract: A filter includes a plurality of series portions each including one or more series resonators, and a plurality of shunt portions each including one or more shunt resonators. At least one of the plurality of shunt portions includes two shunt resonators connected to each other in anti-series, and antiresonance frequencies of the two shunt resonators are arranged externally of a passband.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: March 23, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sung-Tae Kim, Chang Hyun Kim, Jung Woo Sung, Yoon Sok Park
  • Patent number: 10957073
    Abstract: An image recognition method includes: selecting an augmentation process from augmentation processes based on a probability table, in response to an acquisition of an input image; acquiring an augmented image by augmenting the input image based on the selected augmentation process; and recognizing an object from the augmented image based on a recognition model.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: March 23, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jaemo Sung, Chang hyun Kim
  • Patent number: 10938241
    Abstract: A wireless power transmitting device according to an embodiment may include a power transmission circuit and a processor. The processor may be configured to control the power transmission circuit to wirelessly transmit power to a first area around the wireless power transmitting device, perform a predetermined first operation when an obstacle is detected in a second area around the first area, and perform a predetermined second operation when it is detected that the obstacle has entered the first area.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: March 2, 2021
    Assignee: SAMSUNG ELECTRONICS CO.. LTD.
    Inventors: Jae-Seok Park, Young-Ho Ryu, Chang-hyun Kim, Myung-ho Kim, Woong-Il Choi
  • Publication number: 20210011074
    Abstract: A semiconductor device includes a first semiconductor chip and a second semiconductor chip stacked on the first semiconductor chip and electrically connected to the first semiconductor chip by a first through electrode and a second through electrode. The first semiconductor chip may electrically connect the first through electrode to a third test resistor during a second test operation. The first semiconductor chip may detect a voltage level of the first internal node, which is determined by resistance values of the third test resistor and the first and second through electrodes, to test a short failure between the first and second through electrodes during the second test operation.
    Type: Application
    Filed: December 9, 2019
    Publication date: January 14, 2021
    Applicant: SK hynix Inc.
    Inventor: Chang Hyun KIM
  • Patent number: 10863926
    Abstract: The present invention relates to a fall detection device, which includes a sensor attached to a user and sensing a motion of the fall detection device in a plurality of coordinate axial directions; an output section capable of outputting fall information of a user; and a controller determining that the user falls down when acceleration in a first axial direction among the plurality of coordinate axial directions is changed from a positive value to a negative value based on the motion sensed by the sensor, and controlling the fall information to be output.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: December 15, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Han-sung Lee, Jae-geol Cho, Moo-rim Kim, Chang-hyun Kim
  • Patent number: 10860502
    Abstract: A memory system is disclosed, which relates to technology for implementing data communication between memory devices. The memory system includes a plurality of memory devices and a memory controller. The memory devices allow a data packet composed of data and header information to be directly communicated between the memory devices. The memory controller transmits the data packet to a source memory device from among the plurality of memory devices, and receives the data packet from a last memory device from among the plurality of memory devices. Each of the memory devices hashes the header information such that the data is accessed, using a result of the hash, in address regions located at different positions.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: December 8, 2020
    Assignee: SK hynix Inc.
    Inventor: Chang Hyun Kim
  • Patent number: 10863430
    Abstract: A method of connecting an access point (AP) device is provided. The method includes receiving media access control (MAC) address information of a terminal from the terminal through an external device, registering the received MAC address information, and determining whether the registered MAC address information corresponding to MAC address information registered to another AP device. In response to the registered MAC address information corresponding to the MAC address information registered to the other AP device, an AP device managing the registered MAC address information is determined among the AP device and the other AP device. A connection request is received from the terminal, and the terminal is connected to the AP device based on whether MAC address information of the connection request is corresponding to the registered MAC address information.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: December 8, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeon-mok Ko, Dae-hyung Kwon, Duk-gu Sung, Chang-hyun Kim, Kang-jin Yoon, Chang-Hyun Lee
  • Publication number: 20200357705
    Abstract: A method of manufacturing a flip chip package includes forming a plurality of semiconductor chips and bonding the semiconductor chips to a package substrate. The method further includes electrically testing the plurality of semiconductor chips on the package substrate, molding the tested semiconductor chips, and singulating the molded chips. Electrically testing the semiconductor chips includes covering the semiconductor chips with a protection member.
    Type: Application
    Filed: October 30, 2019
    Publication date: November 12, 2020
    Applicant: SK hynix Inc.
    Inventors: Jee Won CHUNG, Dong Jin KIM, Byeung Ho KIM, Chang Hyun KIM
  • Publication number: 20200328447
    Abstract: The present invention relates to a method for producing a 3- to 3.5-valent vanadium solution from a 4-valent vanadium solution by a catalytic reaction in the presence of a reducing agent, which generates a gas product during oxidation; a method for producing an electrolyte for a vanadium redox flow battery; and an apparatus for producing a liquid electrolyte for a vanadium redox flow battery. The present invention is characterized in that when a 3- to 3.5-valent vanadium electrolyte is produced from a 4-valent vanadium electrolyte by a catalytic reaction in the presence of a reducing agent, which generates a gas product during oxidation, the gas product produced in the catalytic reaction is captured with inert gas bubbles, which are carrier gases, and is removed from the reaction solution of the catalytic reaction by gas-liquid phase separation, thereby accelerating the catalytic reaction towards the forward reaction.
    Type: Application
    Filed: April 12, 2019
    Publication date: October 15, 2020
    Inventors: Shin-kun RYI, Myung-seok JEON, Jae Yun HAN, Chang-Hyun KIM